Improvement in kitchen-ranges



1T. s. cLoGsToN.

Range.

Patented Jan. 7, 1862.

WIT-Ness;

N. PETERS. Pham-.Lithognphen washington, D. C.

UNITED .STATES PATENT 1 OFFICE.

THOMAS S. CLOGSTON, OF BOSTON, ASSIGNOR TO HIMSELF AND HORACE P. .VAKEFIELIL OF READING, MASSACHUSETTS.

IMPROVEMENT vINA-KITCHEN-RANGES.

Specification forming part of Letters Patent No. 34,121, dated January 7, 1862.

To all whom, it may con/cern."

Beit known that I, THOMAS S. CLoGsToN,

of Boston, in the county of Suffolk and State of Massachusetts, have invented certain lmprovernents in Kitchen-Ranges; and I hereby declare the following to be a full and sufficient description, reference being had to the accompanying drawings and references marked thereon.

The invention consists in the arrangement and combination, first, of the fire-box with the water-legs of the boiler; second, of the waterlegs of the boiler with the ovens and smokeflues; third, an arrangement of the auxiliary boilers overrthe main boiler, and, fourth, the arrangement and use of an oscillating grate made of tubes to be used as a substitute for the usual water-back.

The drawings for illustrating the invention embrace the figures following, namely:

Figure l is a front elevation of the range; Fig. 2, a top view of the whole apparatus set up; Fig. 3, a Vertical view of the range, the top plate of the boiler with its steam-chambers and the two auxiliaryboilers being removed; Fig. 4, a perspective View of the range and showing how water-fountains may be used; Fig. 5, a plan View of the oscillating grate; Figs. 6 and 7, different views of the parts for operating the grate.

This range is designed to be tted up in brick-work in an ordinary kitchen fire-place or elsewhere. in Fig. 4, and is surmounted at top by two auxiliary boilers C2.

A represents thel fire-box; A', the brickwork; B, the ovens, one on'each side of the lire-box; C, the lower portion of the boiler; C', the steam-chambers of boiler, and C2 the auxiliary boilers resting on the steam-chambers, and the bottoms of which project downward into said chambers, which are rapidly heated thereby.

It' we remove the upper part of the boiler on the line y y of Fig. l and look down on the lower half of the boiler, we have the View shown in Fig. 3,where the water of the boiler covers more than one-half of the fire-box and the entire top of each oven. Letters g represent the boundaries of said boiler on the sides covering the whole surface except the space occupied by the boiler-holes d d.

Itis of a cubical form, as seen lLetters 71. h represent the water-legs of the boiler, which legs extend to the bottom of the ovens BA B, covering three sides of the two ovens and three sides of the nre-box, said legs interposing between said tire-box and ovens to equalize the heat of the ovens, and at the same time protect the metal ofthe re-boX from burning by undue heat.

Letter c is the direct flue to thel chimneypipe. c and c2 are side flues leading from iire-boxA horizontally over ovens, thendown fiues a vertically to the bot-tom of the ovens, 'and thence under the water-legs 7i hand outside of the boiler to ues c3, following the track of the arrows to the chimney-fine c4.

d rl represent boiler-holes and cookingspaces; e, rear boiler-space, .all being placed over the fire-box.

The dotted lines seen in Fig. 3 between the lire-box and the ovens represent the continuous outline of the water-legs, where the view is obstructed by the top plate, which covers the front boiler-space and the `passage of the side tlues from the front boiler-spaces d d over the ovens.

A in Fig. 3 represents the whole area of the lire-box, and B B of the same `iigure `the area of the oven-tops.

Letter a represents the handle of the damper, which opens and closes the descending Iiues ct a under the ovens. The handles being turned outward open the flues, and turned inward close the same.

Letter a2 shows the damper of the direct flue c, which being opened throws the whole draft yfrom the fire-box through c to the chimney; but on opening damper under a and closing that of a2 the draft is carried 'over and behind and around outside of the ovens to fine c4.

By inspecting Fig. 2 in detail we perceive the character of the-auxiliary boilers with the steam-discharging pipes b b projecting behind the auxiliary boilers from the steamchambers c', b indicating a weighted cap adapted to a certain amount of pressure in proportion to the strength of the boiler. One

of the boilers C2 has a projecting bottom z' t',

(seen in dotted lines of Fig. 1,) by means of which the auxiliary boiler is conveniently and quickly heated to a certain temperature, but never to the same extent as the main boilers C. The remaining boiler C2, not having the projecting bottom t' i, will not be heated to the same extent, and may serve Where merely Warm Water is required.

The tops or covers of the auxiliary'boilers are hinged in the usual way, and raised and lowered by handles ff.

The lire-box in its individual character presents no particular qualities7 and requires no special description.

The tire-grate and its accompanying apparatus have peculiarities which require particular description.

The grate is designed for oscillatory movement. An end view of it is shown in dotted lines in Fig. 1, A3, and a sectional plan view detached in Fig. 5; also in Figs. 6 and 7 are separate views of detached parts. Fig. 4 shows the arrangement of pipes in dotted lines provided 'or supplying the grate with cold water from an elevated cistern D', and the hot-Water cistern D2 is for receiving the water that has passed through the grate. They only show a Suitable arrangement that might be used for operating hot water.

The grate is composed of a series of parallel tubes (letters r) opening into hollow end pieces (letters o) communicating with the hollow shaft k l, while la la represent the bearings of the shaft in place. There are openings n. through the cross-piece P communicating freely with shaft k Z when the cross-piece lies as shown in Fig. 5. Said opening n is Seen where it passes through the shaft in Fig. 6. Said cross-piece is capable of rotating on the shaft in the same manner as a stop-cock might be rotated on its plug. If the grate be stationary and the cross-piece P be rotated a quarter of a circle, the communication between it and the fountains will be closed off, and if the rotation be continued onward another quarter of a circle the cornmunication is again open, as before.

In the center of the oscillatory shaft and parallel with its axis is inserted a thin plate or diaphragm of metal m m, extending from the end Zand extending to the farthest side of the nearest end piece of the grate. The flat face of this diaphragm m is shown in Fig. 7. The edge view of it is shown in Figs. 5 and 6. The purpose of the diaphragm is that the water designed to circulate through the grat-e on entering P in the direction of the arrow and through the first half of the grate, which is on the entering side, passes through the outer half of the grate, which is on the exit side, and thence passes out of piece P to the hot-Water reservoir or fountain, following arrows t t. Thus by a suitable arrangement of the fountain for cold water above and hot water below a circulation may be established, acting in the same general' manner as a water-back with similarly-situated hot and cold water reservoirs. For example, we may place a fountain at the highest elevation D and a similar one D2 at a lower level at such relative elevations that the longer column of the one will constantly tend to discharge through the grates A3 and into the hot-Water reservoir D2; but I do not claim the relative arrangement of these two reservoirs, as that is well understood. As the grate is described as an oscillating grate, and as the part P is made to rotate on the shaft of the grate and While the grate is in its normal or horizontal position, the crosspipe of P must also be horizontal to keep up the circulation. To secure these objects, the piece P is made stationary,while the grate is left to oscillate on its axis. This movement is performed by the application of a suitable wrench to the hexagonal nut D, and is used for the purpose of stirring the tire on the grate; or the grate may be slightly inclined, and this will contract the opening and diminish the circulation.

Having stated the character of the invention and described and explained the construction of the apparatus, what I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination of a cubical fire-box with the three Water-legs of the boiler in contact with the three surfaces of the said tirebox, as described, so that two of said waterlegs shall he interposed between the lire and the ovens to moderate the heat thereof, substantially as set forth.

2. The arrangement and combination of an oven between three Water-'legs of the boiler on three of its sides,while the two flues from the fire-box pass over the top of said oven, and thence down its farthest side to the bottom of the water-legs, and thence around by the outside and to the rear, substantially as described.

3. The oscillating tubular grate in kitchenranges constructed and operating substantially as set forth.

4. The combination of Vthe stationary part P With the oscillating grate, substantially as set forth.

THOMAS S. CLOGSTON.

Witnesses:

WM. P. SPENCE, SYLvENUs WALKER. 

